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27-10-2025 00:34

Francois Guay Francois Guay

I found this strange species in Québec,Canada, gr

27-10-2025 15:29

Michel Hairaud Michel Hairaud

Bonjour à tous, Avec Elisabeth Stöckli nous avo

26-09-2025 15:51

Jean-Luc Ranger

Bonjour, voici un ascome poussant sur crotte de la

27-10-2025 19:51

Peter Welt Peter Welt

Who has this article? Doveri, F. 2007. Sporormiel

26-10-2025 13:39

Joaquin Martin

Hi,I found this fungus in a mixed forest of spruce

27-10-2025 10:05

Tripodi Mario

Hello everyone,on October 25th, 2025 I found this

26-10-2025 21:23

Juuso Äikäs

Hello, a couple weeks ago I found some pale, whit

26-10-2025 12:01

Louis DENY

Hello forum,Trouvé à Belfort (400m) sur tige her

23-10-2025 20:59

Patrice TANCHAUD

Bonsoir, est-ce que quelqu'un posséderait un com

24-10-2025 14:50

Riet van Oosten Riet van Oosten

Hello, Found by Laurens van der Linde, Oct. 2025

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Lophiostomataceae
Gernot Friebes, 05-03-2010 18:17
Hi,

could you please help me with this Pleosporales which I were not able to determine. It grew on a branch of Salix, the ascomata are opening slit-like and slightly immersed. The spores have a thick gel sheath as long as they are hyaline, when they are mature the sheath is gone and the spores are slightly brownish. They have 4-9 septa and are (32)38-51 x (9)9,5-10, the asci are bitunicate and 8-spored.

Best wishes,

Gernot

  • message #10625
Gernot Friebes, 05-03-2010 18:18
Re:Lophiostomataceae
micros (scale=10 µm)
  • message #10626
Gernot Friebes, 05-03-2010 18:21
Re:Lophiostomataceae
note the sheath
  • message #10627
Christian Lechat, 05-03-2010 19:07
Christian Lechat
Re:Lophiostomataceae
Hi Gernot,
your fungus ressembles to Lophiostoma massarioides (Sacc.) Holm., although Holm does not speak about ascospore with a sheath.
All the best,
Christian
Alain GARDIENNET, 05-03-2010 19:11
Alain GARDIENNET
Re:Lophiostomataceae
I thought at L. subcorticale (one septate generally ! , it isn't that) but the good proposition is given by Christian.
A very nice recolt.
Alain
Alain GARDIENNET, 05-03-2010 19:26
Alain GARDIENNET
Re:Lophiostomataceae
It would be a good idea to see all the descriptions around massarioides, appendiculatum, appendiculatum var littorale and why not alpigenum. Which one has sheath ? which one never has a sheath ? ... Material lacks and your recolt is an important recolt you does keep very carefully.
Alain
Gernot Friebes, 05-03-2010 20:13
Re:Lophiostomataceae
Hi Christian and Alain,

thank you very much for you help. Unfortunately I don't have any literature on L. massarioides, could you maybe scan me the description by Holm?

Best wishes,

Gernot
Christian Lechat, 05-03-2010 21:40
Christian Lechat
Re:Lophiostomataceae
Hi Gernot,
here is Holm's description
Have a nice evening
Christian
Gernot Friebes, 05-03-2010 22:13
Re:Lophiostomataceae
Hi Christian,

you are great, thank you very much! The description fits quite well and at least they mention that Saccardo reported a sheath, even though Holm & Holm didn't see one. In my collection I could observe a sheath in some ascomata while others didn't have one or very few. I think that a collection with mainly older, mature spores could lack a sheath and maybe it disappears in dead material.
Anyway a very nice find and I'm happy with the outcome!

Best wishes,

Gernot